baber/WOPTO huggingface dataset:
Patent GB-377161-A (GB)
Title: Improvements in radio receiving apparatus
IPC: H04B1/12
Filed: 1931-01-12
Abstract: 377,161. Wireless receiving systems. GLYNN, P., Toronto, Canada. Jan. 12, 1931, No. 1077. Convention date, Jan. 10, 1930. Void [Published under Sect. 91 of the Acts]. [Class 40 (v).] With the object of reducing static interference in wireless reception, the detected currents are separated by filters into two or more ranges of frequency (say above and below 6000 cycles), which are then opposed to each other in the audio-amplifier or in the sound reproducer. As shown in Fig. 1, the detected currents are separated by filters 8, 9 and are passed in opposite directions through superposed coils 10 on the loud-speaker unit. A single coil may be used, Fig. 2 (not shown), or the two frequency ranges may be combined in an inter-valve transformer with two separate primary windings, Fig. 4 (not shown). In Fig. 5, the filters 20a, 20b are interposed in separate loop circuits between a detector valve 18 and an amplifier 22, and the valves and filters are wired to a plug 17 which can be placed in the detector socket of an existing set. In another modification, the filters are in the plate circuits of separate detector valves, to the grids of which the received radio frequency is applied in parallel, one grid circuit including a leak and condenser, and the other an inductance coil, Fig. 6 (not shown). The outputs from the respective filters may be recombined by applying them to separate grids in a tetrode valve, Figs. 8 and 9 (not shown).
Patent GB-1499474-A (GB)
Title: Circuits for radio navigation system receivers
IPC: G01S1/04
Filed: 1976-01-13
Abstract: 1499474 Radio navigation systems; automatic phase control INTERNATIONAL STANDARD ELECTRIC CORP 13 Jan 1976 [21 Jan 1975] 01166/76 Headings H4D and H3A The invention relates to circuits for obtaining phase-corrected sinusoidal modulation frequencies (15 Hz and 135 Hz) from a video signal amplitude-modulated with these frequencies, especially for TACAN receivers, in which the video signal is rectified by a pulse-peak rectifier 1, and the modulation frequencies are filtered-out by means of filters 2, 2<SP>1</SP>. The phase error caused by the active filter 2 is eliminated automatically by a regulating loop. A multiplier 5 receives the output signal D of the pulse-peak rectifier 1 and the output signal G of the sine-to-square-wave converter 4, the filter output signal F being displaced 90 degrees in phase in a phase-shifter 3 and converted into the squarewave signal G in converter 4. Any phase error results, after integration in an integrator 6, in a D.C. voltage signal which is fed back via a line 8 to the filter 2, and a field-effect transistor used as a variable resistor 42, Fig. 4, receives the D.C. voltage signal from the integrator 6 and slightly detunes the filter 2, sufficiently to eliminate the phase shift. The phase error introduced by the pulse-peak rectifier 1 is eliminated by adding up the filter output signals in a mixer or summing circuit 14 and feeding back to the rectifier 1 over line 9, (see also Fig. 3, not shown), to regulate its phase response.
Patent GB-102177-A (GB)
Title: A New or Improved Combined Envelope and Letter Pad.
Inventor: CORRIE YELVERTON
IPC: B42D15/08
Filed: 1916-01-25
Abstract: 102,177. Corrie, Y. Jan. 25, 1916. Envelopes; letter-sheets.-A combined envelope and letter pad comprises a number of blanks shaped as shown in Fig. 3, fastened together at one end, and bound between covers f of the same shape as the blanks. The flaps b, c are suitably gummed, and each blank thus forms a combined envelope and letter-sheet..
Patent GB-1043281-A (GB)
Title: Surge bunkers
Inventor: BARKER WILFRED
IPC: B65G65/00
Filed: 1963-01-10
Abstract: 1,043,281. Surge bunkers. W. H. BARKER & SON (ENGINEERS) Ltd. Dec. 23, 1963 [Jan. 10, 1963], No. 1229/63. Heading B8A. Coal in a mine is received from the right by endless belt 16 and discharged therefrom into surge bunker 2 and falls therefrom and is discharged to the left by endless conveyer 17. In order to compensate for a variable supply of coal, the bunker 2 is made variable in capacity by belt 4. When too much coal is received by bunker 2, belt 4 is moved to the right and when the supply is reduced belt 4 is moved to the left. The movement of belt 4 is effected by endless chains 6 to which the belt is affixed at points 8 and 9. The rollers 11 of chains 6 are supported by supports 12 and 14, and the belt is driven to cause the movement of the belt 4.
Patent GB-1058041-A (GB)
Title: Stacking device
Inventor: GIANOLI GIORGIO
IPC: B65H29/14
Filed: 1965-01-12
Abstract: 1,058,041. Sheet delivering. CENTRE ETUDES TECHNIQUES EUROPEENNES ESTABLISSEMENT. Jan. 12, 1965, No. 1322/65. Heading B6H. A delivering apparatus comprises a tape conveyer 2 advancing newspapers to a rotating cylinder 4 which in turn advances them to a plurality of rollers 10, rotated by belts 9. The rollers 10 feed the newspapers to a fluted roller 13 which pushes them against stops 11 where they are stacked in an upward direction. The newspapers are pressed against the cylinder 4 by tapes 7 and the rollers 10 and stops 11 are adjustable according to the size of newspapers stacked.
Patent GB-302819-A (GB)
Title: Improvements in or relating to pyrophoric igniters
IPC: F23Q2/08
Filed: 1928-01-14
Abstract: 302,819. Orlik, L. Jan. 14, 1928. Pocket igniters, frictional.- In an igniter in which a wheel m carrying a spring- pressed pawl p co-operating with a ratchet on the inner surface of a friction-wheel g is operated by the opening of a pivoted wick-cap e, the wheel m is connected by a pivoted link k with the arm g of the wick-cap, the pivotpin r of the link working in a bearing s of greater diameter in the arm g so that the wheel m is not rotated until a spring assists in raising the wick-cap. The spring j presses a button h against the cam-shaped end of the arm g. A windscreen d, preferably of the kind described in Specification 124,670, may be provided.
Patent GB-672692-A (GB)
Title: Improvements in distribution boxes and switch fuses in fuse protected electrical circuits
IPC: H02B1/18
Filed: 1949-01-18
Abstract: 672,692. Fuse boards. McCARTHY, P. M. Jan. 18, 1950 [Jan. 18, 1949], No. 1427/49. Class 38 (i). A distribution box or a switch-fuse 6 has a panel 9 on hinges 10 and fitted with rotatable fuse carriers 11, each constituting a fuse magazine, the hinging of the panel breaking the fuse contacts 16 and the circuit contacts 23, 24 and allowing the carriers to be rotated individually. When the lid 7 is opened a switch 26 switches-on a pilot light 8, and the panel is provided with a switch 12 which must be open before the panel can be moved, a boss on the lid registering with the switch lever 12a when the lid is closed. The carriers are formed of hexagonal-section insulating blocks, each face 15 having a recess 14 in which the fuse wire 17 lies and at each end a socket contact 16 to engage with the pin contacts 23, 24 in the rear of the box. The carriers are mounted between walls 18, 19 on pivot-pins 22, spring 20 forcing the shaped carrier-ends 21 to engage correspondingly-shaped apertures in the wall 18. To change a fuse on a carrier, a knob 29 is pushed in and then rotated. The wall 18 is slotted at 30 to permit the carriers to be withdrawn for replenishing.
Patent GB-1372283-A (GB)
Title: Method and device for measuring the level of a liquefied gas
IPC: G01F23/16
Filed: 1972-01-12
Abstract: 1372283 Gas storing L'AIR LIQUIDE SOC ANON POUR L'ETUDE ET L'EXPLOITATION DES PROCEDES GEORGES CLAUDE 12 Jan 1972 [12 Jan 1971] 1529/72 Heading F4P [Also in Division G1] In a device for measuring the level of a liquefied gas the gas pressure with a tube 10, immersed in the liquefied gas, is compared with the pressure of gas above the level 58 of the liquefied gas by comparison with the liquid levels in the arms 44, 48 in a "U"-tube. Liquefied gas is absorbed in a permeable mass 20 and any surplus liquid is poured into a heat insulated receptacle 56 on removal of a cover 38.
Patent GB-1223901-A (GB)
Title: Improvements relating to valves for the control of fluid
Inventor: FELLOWS WILLIAM FREDERICK
IPC: F15B13/042
Filed: 1968-01-11
Abstract: 1,223,901. Valves. WELLMAN INDUSTRIAL CONTROLS Ltd. 13 Jan., 1969 [11 Jan., 1968], No. 1568/68. Heading F2V. A fluid control valve comprises a body 10, Fig. 1, with inlet and outlet ports 12, 13,16 and a complementarily ported liner 19 formed with valve seats 29, 30 and housing a displaceable valve member, the liner being made of a synthetic resinous substance and made to a substantially finished form without being machined. Two end-to-end liners sealed to the body by 0-rings 27 co-operate with annular sealing faces 45 supported by discs 44 on the valve member which is opened against a spring 52 when a piston 48 is depressed mechanically or by fluid pressure. Recesses 23 in the liners may be omitted and the sealing faces may be arranged at the centre of the valve member to face away from each other so that the upper valve seat instead of the lower one is normally closed. In Fig. 4, separate seat members 86 of rubber or synthetic resinous material are trapped between adjacent liners 82, 84 to co-operate with closure members 94 which may also be arranged centrally on the valve member so that the upper seat is normally closed. One of the closure members may be replaced by a cylindrical spacer which permanently closes one of the seats to convert the valve to two-way operation. A cam on the valve stem may be arranged to operate a roller and a switch and two such valves, each controlled by a solenoid-operated pilot valve, may be used as a dual sensing valve in the clutch and brake units of a power press.
Patent GB-1156658-A (GB)
Title: Rolling Mill
Inventor: SIMS RAYMOND BERNARD
IPC: B21B37/64
Filed: 1965-08-24
Abstract: 1,156,658. Rolling. R. B. SIMS. 19 Aug., 1966 [24 Aug., 1965; 13 Jan., 1966], Nos. 36190/65 and 1592/66. Heading B3M. [Also in Division G3] A rolling mill includes a pair of roll assemblies which are separated by spacers and urged together by a constant prestressing force, the spacers being automatically adjusted to provide a constant roll gap. The spacers 7 are threaded into an upper chock 3 at each side of the mill, and bear against a lower chock 2. Rotation of the spacers by means of motor-driven gear 11 adjusts the spacing between the chocks 2 and 3, and hence the roll gap. The pressure of the prestressing fluid is automatically maintained constant during rolling by means of an adjustable relief valve 27, the pressure being controlled such that the load on the spacers 7 is held at the middle of their permissible load range. A prestressing cylinder 6 is provided with hydraulic pressure fluid from either a low pressure pump 20 and associated accumulator 23, or from a high pressure pump 26 and accumulator 28. The high pressure fluid is supplied when a workpiece is sensed as being present between the rolls by means of rolling load sensors 18. An amplifier 25, which is responsive to the outputs of the sensors operates switches 22A, 24 and 27 which determine whether high or low pressure fluid is supplied. To control the mill, the prestressing pressure is measured by a gauge 30, the difference between prestressing and rolling loads by sensors 18, and of the position of the screws by sensors 19. Using these values, plus a desired gauge roll gap value set at 35, an amplifier 36 provides an output corresponding to the gauge error. The output is used to control a motor 14 to vary the spacer settings. The values of gauge error, mill speed and load on the spacers, are fed to a control system (Fig. 2, not shown) where the values are compared with reference values. Thus the prestressing pressure is arranged to be varied only when the mill speed is greater than a predetermined figure and when the gauge error is less than a predetermined value. When these conditions do not apply the gauge control system using the spacers is disabled, and the spacers are adjusted to bring the load on the spacers within the specified range.
Patent GB-563251-A (GB)
Title: Improvements in and relating to high frequency cables
IPC: H01B11/18
Filed: 1943-02-01
Abstract: 563,251. Electric cables. LEMON, C. G., and TENAPLAS, Ltd. Feb. 1, 1943, Nos. 1645 and 5245. [Class 36] A high frequency cable of the kind which comprises one or more conductors insulatedly spaced from a surrounding metallic screen by an insulating carrier is constructed with screencarrying means comprising a combination of insulating open-mesh braiding and longitudinally continuous insulating sheathing both formed of thermo-plastic synthetic resin, the said braiding comprising a number of cords or tubes braided around the conductor so that a substantial proportion of the space between the conductor and screen is free of solid dielectric and contains insulating fluid such as dry air or nitrogen, or a liquid such as petroleum. The resin used may be polymers of ethylene, such as polythene, or Alkathene (Registered Trade Mark), or polymers of styrene. In Fig. 1 a bare conductor 1 is enclosed in a tube 2 of resin and braiding layers 4, 5 applied thereto, after which a braided or other metal screen 6 is applied followed by an outer insulating cover 7 which may be formed by extruded thermo-plastic material. In a modification, two conductors 1 surrounded by a tube 2 and braiding layers 4, 5, as in Fig. 1, are enclosed in a common metal screen and insulating cover. In a further modification, Fig. 5, a multi-stranded cable 10 is covered with braiding 4, 5 and six tubes of resin &c., which may be perforated or formed with slits which may be staggered, embrace the braiding, and a further insulating braiding 12, 13, metal screen 14, and insulating cover 15 are applied. In further modifications, split sleeves may be arranged over a braiding applied directly to a conductor and, if desired, an additional sleeve may embrace the braiding and be covered by the screen, or as shown in Fig. 11, a sleeve 16 of insulating material may be arranged between two layers of insulating braiding, and a metal screen 14 and cover 15 applied similar to those used in the form shown in Fig. 5.
Patent GB-993323-A (GB)
Title: Flexible optical instrument
IPC: A61B17/32
Filed: 1962-01-18
Abstract: 993,323. Surgical optical instruments. AMERICAN CYSTOSCOPE MAKERS Inc. Jan. 18, 1962 [Jan. 26, 1961], No. 1827/62. Heading A5R. A flexible cystoscope incorporates a bundle of light-conductive fibres, such as of glass, these being divided into two sections, one for transmitting light to the object being viewed while the other conveys an image of the object back to an eyepiece. In the form described the central portion 26, Fig. 3, of the bundle is employed for transmitting the image to the eyepiece 11 where the polished end face 28 of the bundle is observed by means of an adjustable lens mount 21. The peripheral part 27 of the fibre bundle is used for transmitting light to the object and, for this purpose, it is brought out laterally to a connector 34. A similar bundle of flexible fibres 53 conducts light to them from a high intensity lamp, not shown. At the distal end of the instrument the end 30, Fig. 3, of the inner section of fibres is polished flat and an image of the object being viewed is focused on this surface by lenses 32 while the light-transmitting section 27 is led outside the lens holder 31 to provide an annular end face 36. The flexible length of the fibre bundle is supported and protected by helical steel bands 37 and enclosed in a flexible sheath 39 which is filled with a lubricating oil, to prevent abrasion of the fibres. In a modified form, see Fig. 9 (not shown), the end portion of the light-transmitting section, adjacent the distal end of the instrument, is replaced by a solid glass cylinder, the cylindrical surfaces of which are silvered. It is also proposed to associate the instrument with a catheter by inserting it in a flexible tube having liquid-conducting ducts in its walls. Specification 993,322 is referred to.
Patent GB-1057041-A (GB)
Title: Improvements in or relating to steelmaking
Inventor: METCALF ARNOLD
IPC: C21C5/32
Filed: 1963-01-16
Abstract: A solid charge, which may consist of scrap and pig iron, or entirely of scrap together with a suitable carburizing agent, is melted and refined by combusting a mixture of hydrocarbon fuel and oxygen, combustion being maintained throughout the refining stage. The burner is initially located so that the flame is in contact with the charge, and is then moved down into the latter until a pool of molten metal forms, when the burner is gradually withdrawn upwards.  During refining the bath temperature is controlled by the rate of fuel combustion while the rate of carbon removal is independently controlled by the supply of excess oxygen over that required by the fuel.
Patent GB-268733-A (GB)
Title: Improvements in relay arrangements for use in telephone or like systems
IPC: H04Q3/00
Filed: 1927-01-22
Abstract: 268,733. Siemens & Halske Akt.-Ges. April 1, 1926, [Convention date]. Automatic and semi-automatic exchange systems.-The speed of operation of a relay Th is adjusted by connecting in series with it the highresistance winding I and in parallel the lowresistance winding II of a relay T. The current induced in winding II by that in winding I, according to the arrangement of the windings, assists or opposes the energizing current through relay Th, and thereby renders it quick-acting or slow-acting. The connecting point of relay Th may be movable along the winding of relay T. Fig. 3 shows the application of the invention to a non-numerical step-by-step switch, in which the test circuit includes a relay Th2 made quickacting by relay T2 for opening the circuit of the driving magnet D. In a modification, the windings of relay T2 are connected in parallel instead of in series.
Patent GB-1519672-A (GB)
Title: Antenna matching device
IPC: H03H7/40
Filed: 1976-01-19
Abstract: 1519672 Aerial matching devices THOMSON CSF 19 Jan 1976 [22 Jan 1975] 2036/76 Heading H4A An H.F. aerial matching device, arranged to considerably reduce radiation from the antenna while the operation of matching transmitter to aerial, before actual transmission, is taking place, comprises an n dB four port directional coupler with two conjugate port pairs, the output pair comprising a high power output port for connecting transmitted power to the aerial and a low power output port, and means for interchangeably switching these output ports between connection to the aerial and connection to a matched load, whereby during matching, the low power port is connected to the aerial thereby reducing the transmitted power. In Fig. 1, the H.F. power signal from TX E is connected to aerial E via directional coupler 1, switch 3 and matching circuit 2. Directional coupler 1 comprises a transformer arrangement (Fig. 3, not shown) whereby the signal inputted at port 11 is split, and appears at conjugate output port pair 12 and 13 such that the signal power at 12 exceeds that at 13 by at least 20 dB. The invention resides in coupling low power port 13 by means of switch 3 to matching circuit 2 and hence aerial A when matching takes place, while high power port 12, normally connected to aerial A for transmission purposes is connected to matched load 5. Port 14 which forms a conjugate pair with port 11 is connected to matched load 4. To control matching, voltage comparator circuit 7 receives a voltage e c , proportional to the voltage produced in TX E and obtained via voltage reducing circuit 6, and compares this with a voltage e a  from port 13 such that if the assembly of matching circuit and antenna is replaced by a matched load |e a a| = |e c | and the comparator produces zero output. Phase comparator 8 compares the phase of signals e a  and e b  (from port 14) whereby equality thereof signifies phase equality of transmitted and reflected signals and hence the required matched condition. Control means 9 may comprise an automatic system or be manual, in which case the operator systematically changes the values of capacitance and inductance of the components which matching circuit 2 comprises, to obtain a zero reading firstly on an indicator connected to voltage comparator 7 and then a similar reading for phase comparator 8.
Patent GB-316850-A (GB)
Title: An improved food product
IPC: A23C19/09
Filed: 1929-01-22
Abstract: 316,850. Galbani, E. Jan. 22, 1929. Drawings to Specification. Cheese, fat, and meat &c. preparations. - A food product comprises an envelope of cheese of any shape or form containing a filling of butter, jam, marmalade, sausage meat or other foodstuff, either alone, or in layers of various substances, or mixed together.
Patent GB-310347-A (GB)
Title: Improvements in, or relating to, the surface hardening of metal bodies or articles by heat treatment and apparatus therefor
IPC: C21D1/06
Filed: 1928-01-23
Abstract: 310,347. Cammell, Laird, & Co., Ltd., Allan, J. M., and Hague, A. P. Jan. 23, 1928. Resistance furnaces.-Apparatus for heating the journal end of a railway axle comprises an annular electric furnace a heated by a ring of electrodes forming an annular heating zone d. An adjustable closure e is provided for one end of the furnace. The axle is carried on a trolley j mounted on rails h on a turntable g and provided with motordriven rollers m for rotating the axle. The trolley is traversed to bring the journal k<1> into the furnace, and, after sufficient heating has been effected, the axle is withdrawn and the turntable moved to enable the journal to be inserted into water spraying apparatus p.
Patent GB-664168-A (GB)
Title: Improvements relating to combustion air-heaters
Inventor: BARKER HENRY HAYDEN
IPC: F28D7/10
Filed: 1949-01-27
Abstract: 664,168. Thermal switches. DANIEL & CO., Ltd., D. A. April 11, 1950. [Jan. 27, 1949] No. 2208/49. Class 38 (v). [Also in Groups XI and XIII] In an air heater in which the air passes through a passage 7 or chamber and combustion gases pass through a passage or chamber 1, 3, a cut-out switch 19 is actuated by differential expansion of two different parts 5, 6 of the heater, e.g. to operate an indicator or control the fuel supply. From a cylindrical combustion chamber 1, burning gases from a burner head pass through ports 2 to an annular chamber 3 and thence to an exhaust 4. The outer casing 5 is screwed to a lug 9 welded to the exhaust 4, but at the switch end of the heater there is permitted relative movement between the outer wall 6 of the combustion gas chamber 3 and this casing 5. Since the wall 6 is heated more than is the casing 5 these parts need not be of different materials but may be of the same material. A post 14 moves in a slot 15 in the casing and is secured to the wall 6 by a bracket 16 which closes the slot. An adjustable screw 26 in the post 14 bears on the operating member 18 of the micro-switch 19 in the cold, inoperative state of the heater, as shown, to open a "latch-in" relay circuit. A starting switch is push-operated to complete the relay circuit containing a fuel pump, ignition device and fan and if normal combustion takes place the thermal switch 19, being in parallel with the starter, continues to "make" this circuit when the starter switch is released since the wall 6 expands and the screw 26 releases the pressure on the member 18. If combustion fails the post 14 returns to the position shown and opens the cut-out switch 19 to prevent accumulation of fuel in the heater. Instead of controlling the heating, the switch 19 may control a visual indicator, e.g. a lamp to show when the heater is operating or, conversely, when it is not.